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ED125

EMERGENCY DISCONNECT

The ED125 range of switches have been designed to provide a rapid means of disconnecting batteries or other power supplies in the event of serious electrical faults.  Whilst the switches are primarily intended for use with battery powered vehicles they are also suitable for use with static power systems.  All types are capable of safely rupturing full load battery currents in the event of an emergency.

The ED125 is a manually operated device with an over-centre spring mechanism which provides a snap action for both opening and closing of the main contacts.  The ED125 is easy to install (see drilling details) and is secured with supplied M5 posidrive mounting screws.  Lockable versions feature a key which is necessary for the knob to be moved from the “Off” position to the “On” position.  Once in the “On” position, the key can be removed.  Thereafter, the knob may be depressed to the “Off” position where it will automatically lock and remain locked until the key is used again to unlock it.  The ED125 is fully serviceable with genuine replacement parts available.

Precautions:

When fitted with magnetic blowouts the polarity marked on the contact housing must be observed when connecting the main terminals.  Ensure that the switches are installed in a position where heavy arcs emanating from the switch cannot damage or electrically jump across to adjacent parts.  The switch is to be used to rupture current in an emergency or as a no-load isolator.

Do not use as a regular On-Load Switching Device.

 

ED125 Technical Information

Application
InterruptedRating ( Ith )Uninterrupted
Thermal Current Rating 125A 125A
Intermittent Current Rating:
30% Duty 230A 230A
40% Duty 200A 200A
50% Duty 175A 175A
60% Duty 160A 160A
70% Duty 150A 150A
Rated Fault Current Breaking Capacity (Icn) 5ms Time Constant: (In accordance with UL583*)
Blowouts 800A at 96V D.C.
No Blowouts 800A at 48V D.C.
Rated Fault Current Breaking Capacity (Icn) Resistive Load: (In accordance with UL508*)
Blowouts -
No Blowouts -
Maximum Recommended Contact Voltages
Blowouts 96V 0V
No Blowouts 48V 0V
Typical Voltage Drop per pole across New Contacts at 125A 40mV

Mechanical Durability > 10,000 Cycles
Coil Voltage Available (Us) (Rectifier board required for A.C.) 0 - 0V

ED125 Features

Component Configurations
Auxiliary
STANDARD
STANDARD - GOLD

ED125 Resources

ED125 Data Sheet

  • Format: .pdf
  • Size: 1,075kb

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  • The ED125 has the following optional components available: